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Page xxiv of xxxii
R01UH0025EJ0300 Rev. 3.00
Sep 24, 2010
19.9.4
Register Access................................................................................................. 876
19.9.5
Interrupts........................................................................................................... 876
Section 20 IEBus
Controller (IEB) [R5S72612] [R5S72613]......................877
20.1
Features............................................................................................................................. 877
20.1.1
IEBus Communications Protocol...................................................................... 878
20.1.2
Communications Protocol................................................................................. 882
20.1.3
Transfer Data (Data Field Contents) ................................................................. 890
20.1.4
Bit Format ......................................................................................................... 893
20.1.5
Configuration.................................................................................................... 894
20.2
Input/Output Pins.............................................................................................................. 896
20.3
Register Descriptions ........................................................................................................ 896
20.3.1
IEBus Control Register (IECTR)...................................................................... 898
20.3.2
IEBus Command Register (IECMR) ................................................................ 899
20.3.3
IEBus Master Control Register (IEMCR)......................................................... 901
20.3.4
IEBus Master Unit Address Register 1 (IEAR1) .............................................. 903
20.3.5
IEBus Master Unit Address Register 2 (IEAR2) .............................................. 904
20.3.6
IEBus Slave Address Setting Register 1 (IESA1)............................................. 904
20.3.7
IEBus Slave Address Setting Register 2 (IESA2)............................................. 905
20.3.8
IEBus Transmit Message Length Register (IETBFL)....................................... 906
20.3.9
IEBus Reception Master Address Register 1 (IEMA1) .................................... 907
20.3.10
IEBus Reception Master Address Register 2 (IEMA2) .................................... 908
20.3.11
IEBus Receive Control Field Register (IERCTL) ............................................ 909
20.3.12
IEBus Receive Message Length Register (IERBFL) ........................................ 910
20.3.13
IEBus Lock Address Register 1 (IELA1) ......................................................... 910
20.3.14
IEBus Lock Address Register 2 (IELA2) ......................................................... 911
20.3.15
IEBus General Flag Register (IEFLG).............................................................. 912
20.3.16
IEBus Transmit Status Register (IETSR) ......................................................... 915
20.3.17
IEBus Transmit Interrupt Enable Register (IEIET) .......................................... 919
20.3.18
IEBus Receive Status Register (IERSR)........................................................... 921
20.3.19
IEBus Receive Interrupt Enable Register (IEIER)............................................ 925
20.3.20
IEBus Clock Selection Register (IECKSR) ...................................................... 926
20.3.21
IEBus Transmit Data Buffer 001 to 128 (IETB001 to IETB128)..................... 928
20.3.22
IEBus Receive Data Buffer 001 to 128 (IERB001 to IERB128) ...................... 929
20.4
Data Format ...................................................................................................................... 930
20.4.1
Transmission Format ........................................................................................ 930
20.4.2
Reception Format.............................................................................................. 931
20.5
Software Control Flows .................................................................................................... 932
20.5.1
Initial Setting .................................................................................................... 932
20.5.2
Master Transmission......................................................................................... 933